DocumentCode
1296462
Title
Quantized Hall resistance measurement at the NML
Author
Ricketts, Brian W. ; Cage, Marvin E.
Author_Institution
Commonwealth Scientific and Industrial Research Organization, Division of Applied Physics, National Measurement Laboratory, Sydney, Australia 2070
Issue
2
fYear
1987
fDate
6/1/1987 12:00:00 AM
Firstpage
245
Lastpage
248
Abstract
An automatic measurement system has been used to determine the values of quantized Hall resistances RH in terms of the National Measurement Laboratory (NML) realization of the International System (SI) ohm. The quantized Hall resistances of two GaAs-AlGaAs heterostructures were measured. The n = 2 step of one heterostructure and the n = 4 step of the other were measured over a seven-month period. A weighted mean of these determinations gave a value for the quantity RH (n = 1) of 0.383 ppm (0.078 ppm one-standard-deviation (1σ) uncertainty) above the nominal 25 812.80 Ω in SI units.
Keywords
Current measurement; Electrical resistance measurement; Resistance; Resistors; Silicon; Temperature measurement; Uncertainty;
fLanguage
English
Journal_Title
Instrumentation and Measurement, IEEE Transactions on
Publisher
ieee
ISSN
0018-9456
Type
jour
DOI
10.1109/TIM.1987.6312678
Filename
6312678
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